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Upper River Spring (Kini Spring)

Upper River Spring
Upper River Spring (Kini Spring)./ T. Scott, Wikimedia Commons / public domain

WorldBlue  In short

Similar to the nearby River Sink Spring, Upper River Spring is rather not a spring but a karst window – an opening in an underwater cave.

2.6 out of 10 stars 25.8%

GPS coordinates
30.2786 N 84.3429 W
Location, address
North America, United States, Florida, Wakulla County, east from Crawdfordville Highway, at River Sink Road, northwest from River Sink Spring
Kini Spring, Kini Sink
Springs (karst window)

Map of the site

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WorldYellow In detail

Similar to the nearby River Sink Spring, Upper River Spring is a karst window – an opening in the ground, where the ceiling of a cave has collapsed and a fragment of the cave is seen from above.

This is one of the numerous interesting features created by the karst processes in Woodwille Karst Plain.

Upper River Spring is some 76 m long and 37 m wide opening – lake. It is up to 24 m deep. This karst window is connected under the ground with a true, giant spring – Wakulla Spring. In 1972 the flow rate in this karst window was 4,984 l/s.


  1. Wakulla Springs State Park: Wakulla River Sinks Trail, Tallahassee, Florida, Hiking the Appalachians and Beyond. Accessed on September 13, 2023.
  2. Kris Barrios, St. Marks River and Wakulla River Springs Inventory
    Leon and Wakulla Counties, Florida
    , Northwest Florida Water Management District, July 2006. Accessed on September 13, 2023.

WorldYellow Linked articles

Three Sisters Springs, Florida
Three Sisters Springs / corvettediver, / CC BY-SA 2.0


Powerful natural freshwater springs belong to the most fascinating monuments of nature. Even more exciting is the diversity of unusual springs – mineral springs, hot springs, submarine springs as well as the unusual black smokers. Especially beautiful are such natural rarities as travertine, silica, or salt terraces created by warm and hot springs and, especially, geysers.

Bridalveil Falls in Yosemite Valley
Bridalveil Falls in Yosemite Valley./ Jorge Láscar, Flickr / CC BY 2.0

Wonders of the United States

The United States of America is one of the largest countries in the world and offers a wide array of diverse attractions: many are unsurpassed in the world. Highlights of the United States are cliffs, canyons, and rock formations, several impressive downtowns of cities with numerous skyscrapers as well as a rich array of geothermal features, and the giant forest of California.

Tree of Life, Orlando
Tree of Life, Orlando./ Chad Sparkes, Flickr / CC BY 2.0

Wonders of Florida

Florida is the tropical paradise of the mainland United States. Over the last century, it has experienced fabulous changes, turning from a forgotten, swampy badland into a densely populated and rich land. Highlights of Florida include the architecture of the late 19th and 20th centuries as well as its giant springs and caves.

WorldYellow Recommended books

Florida Natural Wonders: 101 Slices Of Heaven That You Can’t Miss When Visiting Florida

Are You Ready for a Breathtaking Experience Through the Heart of Florida, Exploring Its Most Famous Wonders and Attractions?
If you want a guide that will help you find the most beautiful spots in this gorgeous state, then keep reading because this is the book you were looking for!

The History Of Jackson County, Florida: The Early Years

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